TABLE 2

Multinomial logistic regression model relating HIV-1 subtypes with date of diagnosis, age, gender, and presumed transmission mode

Subtype comparison	Variable	B^e	SE	Wald^a	OR^b	95% CI^c
Subtype comparison	Variable	B^e	SE	Wald^a	OR^b	LB	UB
Recombinants vs A1/F1	Days (or yr) since date of diagnosis	−0.0004	0.000	6.278*	1.000 (0.852)	0.999	1.000
	Age	−0.006	0.019	0.091	0.994	0.959	1.031
	Male	0.298	0.638	0.218	1.347	0.386	4.699
	Heterosexual	−0.808	0.735	1.207	0.446	0.106	1.884
	IDU^d	−0.346	0.820	0.178	0.708	0.142	3.533
G vs A1/F1	Days (or yr) since date of diagnosis	−0.001	0.000	10.774**	0.999 (0.824)	0.999	1.000
	Age	0.016	0.016	1.100	1.016	0.986	1.048
	Male	−0.847	0.476	3.167	0.429	0.169	1.090
	Heterosexual	1.450	1.161	1.559	4.264	0.438	41.537
	IDU	2.012	1.214	2.747	7.475	0.693	80.672
B vs A1/F1	Days (or yr) since date of diagnosis	−0.001	0.000	17.319***	0.999 (0.781)	0.999	1.000
	Age	−0.016	0.017	0.932	0.984	0.952	1.017
	Male	−0.473	0.512	0.856	0.623	0.229	1.698
	Heterosexual	−1.234	0.663	3.459	0.291	0.079	1.069
	IDU	−1.593	0.771	4.269*	0.203	0.045	0.921
C vs A1/F1	Days (or yr) since date of diagnosis	−0.000	0.000	5.154*	1.000 (0.862)	0.999	1.000
	Age	0.017	0.019	0.815	1.017	0.980	1.056
	Male	−0.646	0.579	1.242	0.524	0.168	1.632
	Heterosexual	−0.267	0.949	0.079	0.766	0.119	4.919
	IDU	1.216	0.996	1.491	3.374	0.479	23.754